n. Changeableness. [ 1913 Webster ]
n. The quality or state of being exchangeable. [ 1913 Webster ]
The law ought not be contravened by an express article admitting the exchangeability of such persons. Washington. [ 1913 Webster ]
n. Unchangeableness. [ Obs. ] Kenrick. [ 1913 Webster ]
n. The state or quality of being interchangeable; interchangeableness. [ 1913 Webster ]